FWD: Disable and Remove Unwanted Services on RHEL/CentOS 7 Minimal Installation

Disable and Remove Unwanted Services on RHEL/CentOS 7 Minimal Installation

 

#Disable/Remove Postfix MTA, Avahi and Chrony Services

 

# mail service , use 25/ 53 port

# systemctl stop postfix

# yum remove postfix

 

#Replaced by NTP server, use 123 port

# systemctl stop chronyd

# yum remove chrony

 

# Avahi daemon is strongly tight and depends on Network Manager service.

# systemctl stop avahi-daemon.socket avahi-daemon.service

# systemctl disable avahi-daemon.socket avahi-daemon.service

 

As a final setting make sure you set up a name for system hostname using hostnamectl utility and review your configuration with hostname command.

# hostnamectl set-hostname FQDN_system_name

# hostnamectl status

# hostname

# hostname -s      ## Short name

# hostname -f       ## FQDN name

 

 

https://www.tecmint.com/remove-unwanted-services-in-centos-7/